Hebei Ji Meng high pressure flange fittings Group Co., Ltd. is a company integrating production, R & D, sales and service. It is located in Mengcun Hui Autonomous County, known as China's elbow pipe fittings.
Company production
Q235 is the ordinary carbon steel, its yield strength is 235MPa is a just to welding, but quenching does not get angry. Q represents the yield of this material, and the following 235 refers to the yield value of this material, at about 235MPa. With the increase of the thickness of the material, the yield value of the material will be reduced. Because of its moderate carbon content, good comprehensive performance, good combination of strength, plasticity and welding performance, it has the most widely used. Ordinary carbon structural steel - universal plate is a material of steel. Q represents the yield of this material, and the following 235 refers to the yield value of this material, at about 235MPa. With the increase of the thickness of the material, the yield value of the material will be reduced. Because of its moderate carbon content, good comprehensive performance, good combination of strength, plasticity and welding performance, it has the most widely used.
The different grades of Q235A, Q235B, Q235C, Q235D and Q235E are mainly different from the temperature of the impact. 　
A refers to more than 40 degrees, B is above 20 degree, C0 degree is above, D-20 degree is higher than E-40 degree, E is different, refers to their performance in different impact temperature. They are: Q235 class A, no impact; Q235B level is 20 degree normal temperature impact; Q235C level is 0 degree impact; Q235D level is -20 impact; Q235E is -40 degree impact. At different impact temperatures, the impact values are also different.
Element content:
The sulfur content of A, B, C and D decreased in turn, and the phosphorus content of A and B was the same, the phosphorus content of C was the second, and the content of D phosphorus was the most.